Ecm442 lecture 1 latest
- 1. INTRODUCTION OF CIVIL ENGINEERING QUANTITIES WEEK 1 LEARNING OUTCOMES (CO1-PO3) Understand the definition of civil engineering quantities Understand the construction stages and where is bill of quantity being produced Understand the purpose of bill of quantities @nurkamaliahmustaffa2013
- 2. What is civil engineering quantities? It can be defined from two words : • civil engineering Civil engineering is a professional engineering discipline which deals with the design, construction and maintenance of the physical and natural built environment, cover a large of different jobs such as bridge,highway, canals, dams and building. In general, civil engineering is concerned with the overall interface of human created fixed projects with the greater world. General civil engineers work closely with surveyors and specialized civil engineers to design grading, drainage, pavement, water supply, sewer service, dams, electric and communications supply. General civil engineering is also referred to as site engineering, a branch of civil engineering that primarily focuses on converting a tract of land from one usage to another. Site engineers spend time visiting project sites, meeting with stakeholders, and preparing construction plans. Civil engineers apply the principles of geotechnical engineering, structural engineering, environmental engineering, transportation engineering and construction engineering to residential, commercial, industrial and public works projects of all sizes and levels of construction. • quantities The amount of labor, equipment and materials to carry out the project under various item of works. @nurkamaliahmustaffa2013
- 3. PICTORIALS OF PAVILLION MALL, KUALA LUMPUR @nurkamaliahmustaffa2013
- 4. PAVILLION MALL CONSTRUCTION STAGE @nurkamaliahmustaffa2013
- 5. ce @nurkamaliahmustaffa2013 You must understand the Sequence of Construction
- 6. HOW TO CALCULATE THE QUANTITIES? m3 ? kg ? @nurkamaliahmustaffa2013
- 7. HOW TO CALCULATE THE QUANTITIES? m3 ? @nurkamaliahmustaffa2013
- 8. Who responsible for civil engineering quantities? If the job done by quantity surveyor , why civil engineer needs to study the civil engineering quantities? Let’s discuss….. Quantity Surveyor – the application of expert knowledge in measure the quantity and estimation of the cost and prices of labour, materials and plant required. Why? achieve project’s objective within the scope of quality, time and cost. @nurkamaliahmustaffa2013
- 10. Objectives of Construction Project @nurkamaliahmustaffa2013
- 11. • Discuss on the concept & the requirement of the project (Client-Architect-Local authority) • E.g. Environmental impact assessment , traffic impact assessment (Consultant Engineer) • Produce Architecture drawing Conceptual & feasibility study • Architect design the concept of the project on the client’s requirement • Consultant Engineer will design and provide detail drawing based on the client concept & feasibility • Produce Engineering drawing and specification Engineering & design • Taking off based on Eng. Drawing, Arc Drawing and Specification • Preparation of tender document-(Taking off and BQ) • Call for tender & selecting the contractor • Awarding the contract to winning contractor Procurement • Winning Contractor will construct the project as per contract • Architect and Consultant engineer will monitor progress of work and the quality of the project Construction • Upon the completion of the project, contractor will handing over the project to the client • Client will continue to operate & maintain a building Operate & maintain Construction Stages -example-Building
- 12. Why quantities is carried out after design stage? Because to carry out taking off, detail drawings from design stage is needed. Let’s see example… @nurkamaliahmustaffa2013
- 13. From the above sketch, calculate : Excavation in cubic meter Concrete volume in cubic meter Reinforcement in Kg. Formwork Insert all the above answer in “bill of quantities” Notes: R10 – 0.616 kg/m Y10 – 0.616 kg/m Y12 – 0.888 kg/m Assuming : cover = 25 mm for column = 50 mm for footing Leave blank @nurkamaliahmustaffa2013
- 14. How quantities can be carried out? TAKING OFF •It is the process of measuring from drawings and recording all dimensions in recognized form on a special ruled paper called “Dimension Paper” BILL OF QUANTITIES •A list of items giving the quantities and brief description of work to be carried out with is respective quantity and unit cost for carrying out each work. @nurkamaliahmustaffa2013
- 15. What is taking off sheet? A process of measuring from drawings, recording all dimensions in recognized form called taking of sheet or “dimension paper” Taking off sheet No Dimens ion Final Quantity Description of item Unit @nurkamaliahmustaffa2013
- 16. What is “bill of quantities” ? A list of items giving the quantities and brief description of work to be carried out with its respective quantity and unit cost for carrying out each work. Bill of Quantities Leave blank Item Description Quantity Unit Rate Amount (RM) @nurkamaliahmustaffa2013
- 17. The purpose of Bill of Quantities (BQ): 1. To set down the various items of works in a logical sequence so that it readily priced by contractor. 2. Enables all the contractors to tender on the same information. 3. Provide a convenient basis for valuation of stage payments during the contract, before the accurate remeasurement figure are available. 4. Provide an approximate checklist for the contractor to order materials and plan for other resources. 5. Provide data for cost analyses for use in cost planning of future projects. 6. Contractors are saved the costly exercise of each having to take off quantities for themselves. @nurkamaliahmustaffa2013
- 18. In normal practice, quantities is carried out after design stage and before construction stage. Why after design stage ? Because to carry out taking off, detail drawings from design stage is needed. Let’s see example : 3m 5m 2m @nurkamaliahmustaffa2013
- 19. Quantities Take off Sheet 2/10 5.00 3.00 2.00 600.00 3m 5m 2m If 2 rows of column bases with 10 columns in each row? No Dimension Final Quantity Description of item @nurkamaliahmustaffa2013
- 21. 1. Briefly explain why taking off quantities is carried out after design stage? 2. What is the purpose of Bill of Quantities? 3. How quantities can be carried out? and define taking off and bill of quantities 4. Explain how to carried out the estimation of the project. for example take concrete column for example? Material Equipment labor Tutorial-Answer all question
- 22. Q.2 Briefly explain why taking off quantities is carried out after design stage? @nurkamaliahmustaffa2013 Because to carry out taking off, detail drawings from design stage is needed. All information on the dimension of the physical project, specification and standard for material and equipment are need to consider before taking off can be carried out.
- 23. What is the purpose of ‘Bill of Quantities’? 1. To set down the various items of works in a logical sequence so that it readily priced by contractor. 2. Enables all the contractors to tender on the same information. 3. Provide a convenient basis for valuation of stage payments during the contract, before the accurate remeasurement figure are available. 4. Provide an approximate checklist for the contractor to order materials and plan for other resources. 5. Provide data for cost analyses for use in cost planning of future projects. 6. Contractors are saved the costly exercise of each having to take off quantities for themselves
- 24. RECAP AND TUTORIAL How quantities can be carried out? Retrieved all detail information from the design drawings, specification and other information related to the project. Then, do the taking off. After done all taking off, transfer all the quantities to bill of quantities (actract). 1. TAKING OFF •It is the process of measuring from drawings and recording all dimensions in recognized form on a special ruled paper called “Dimension Paper” 2. BILL OF QUANTITIES •A list of items giving the quantities and brief description of work to be carried out with is respective quantity and unit cost for carrying out each work.
- 25. Explain how to carried out the estimation of the project. for example take concrete column for example? For example to construct concrete column we need: Material – Concrete, Formwork, Reinforcement bar Equipment-Crane, concrete vibrator Labor – Carpenter, concreter Quantities are define as the estimate the amount of labor, equipment and material used to carry out the project under various item of works. So, to carry out the estimation of the construction (1 item only) concrete column, all material, equipment and labor are need to count
Editor's Notes
- #3: ROLLOVER CIVIL ENGINEERING-Civil engineering is a professional engineering discipline which deals with the design, construction and maintenance of the physical and natural built environment, cover a large of different jobs such as bridges ,highway, canals, dams and building. POP UP- page 6 POP UP-PAGE 7 2)ROLLOVER QUANTITIES -Quantities is the estimated amount of labor, equipment and materials to carry out the project under various item of works. POPUP-page 8 POP UP-page 9& 10
- #6: 1st- cycle of material, shows one by one - animation 2nd –construction picture
- #9: 1)Shows the question…Who responsible for civil engineering quantities? 2)Pop up quantity surveyor-page 12 3)Roll over.. The application of expert knowledge…… 4) Shows Why? 5)Popup objectives-page 13
- #13: 1) Pop up example –page 16
- #16: 1)Shows what is…. 2)Roll over taking off sheet
- #17: 1)Shows what is…. 2)Roll over Bill of Quantities
- #18: Bill of Quantities: file GI compatibility mode. Microsoft excel